Fig. 4.

Mean synchronization (SI) in the target-related network. (A) The no-AB condition (solid line) shows a stronger SI during stimulus presentation than that in the AB condition (dashed line). Zero milliseconds corresponds to the onset of the first target. The beginning of the letter stream ranges from -880 to -580 ms. The SI time courses were smoothed with a Savitzky-Golay filter (polynomial order, 3; frame length, 600) and averaged across all significant connections within the target-related network. (B) SI for the components of five successive stimuli. The x axis specifies time after presentation of the first target. Each point represents the mean SI in a 60-ms window centered at 260 ms after the respective stimulus. Values at 260 ms quantify the network synchronization to the first target, and values at 114 ms represent the network synchronization corresponding to the distractor preceding the first target. Conditions are color-coded (black, no-AB; red, AB; blue, target; green, distractor). The dashed lines mark the extent of SI in trials containing only distractors. Points marked with an asterisk are significantly different from their neighbors at the same position (P < 0.05, Kruskall-Wallis test), whereas points within the same shaded area are not significantly different. Negative values arise from the filtering of the SI time courses.